Mine-locomotive



W. W. SLOANE.

MINE LOCOMOTIVE.

APPLICATION FILED MAY 4, 1920.

1,35 ,028, Patented Nov. 9, 1920.

2 SHEETS-SHEET I.

W. W. SLOANE.

MINE LOCOMOTIVE.

APPLICATION FILED MAY 4. 1920.

1,358,028. Patented Nov. 9, 1920.

2 SHEETS-SHEET 2.

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WILLIAM V7. SLOANE, 01 HIGAGO, ILLINGIS, ASSIGNGR T0 GOUDMA N MANUFAC- TUBING COMPANY, OF GI-IICAGQ, ILLINOIS, A CORPGRATION OF ILLINOIS.

MINE-LOCOMOTIVE.

Specification of LettersEatent.

Patented Nov. 9, 1920.

I Application filed May 4, 1920. Serial No. 378,874.

To all whom it may concern:

Be it known that I, VVILLJAM W. Swim, a citizen of the United States, residing'at Chicago, in the county of Cool: and'State of lllinois, have invented an Improvement in Mine-Locomotives, of which the following a specification. i This invention relates to improvements in mine locomotives and has forfits principal object to provide a single motor locomotive having a pair of flexibly mounted driving axles in which the overall height of the locomotive can be reduced to a minimum, so as to be particularly adaptable for use in mines. In my pending application for Letters Patent, Serial #351,600, filed January 15, 1920, I have described a construction of storage battery locomotive in which two: axles are pivotally mounted on the main,

frame of the locomotive and the power is transmitted to the axles from a single-motor also mounted on the frame, through a pair of intermediate gears in vertical alinement with the pivots. The storage battery is mounted on springs over the motor and mainframe. 1 p

The present invention differs from the prior construction above described in that the main frame, which includes the entire locomotive with the exception of the motor and running gear, is mounted on springs of the usual type, and journaled on the outside ends of the axles, whilethe motor is suspended between, and connected to the axles by substantially the same method of pivoted construction. above, described, but independ ent of the main frame, It Will be seen that the improved construction afiords a full spring suspension forthe main frame of the locomotive, thereby impa'rtingeasier riding will hereinafter be described in connection with the accompanving drawings, and more particularly defined in the appended claims. in the drawings figure I is a view in elevation of a locomotive embodying Imy invention. y

Fig. 2 is a top plan view of the locomotive.

Fig. 3'is an enlarged vertical cross section. taken on line 3-3 of Fig. 2.

Fig. 4 is an enlarged cross-section taken on line i l of Fig. 2.

Fig. Sis a vertical cross-section taken on line 5 5, of Fig. 2, illustrating details and arrangement of the driving mechanism.

In the embodiment of my invention illustrated, a locomotive 1 is provided with a main frame 2, a pair of axles 3, 3 with supporting wheels 3 3, and journal boxes 4', on the outerends ofthe axles, and. supporting theirame 2 bysuitable spring suse pension crevices such as helical springs 5, 5,;

In addition to the supporting means for the main frame abovedescribed, the axles 8, 3 also carry themotor casingor support 6 suspended therebetween by means of a pair of braclrets i, 7, each journaled on an axle 3 by bearings 8, 8, and pivoted near one end thereof on horizontally disposed pins 9,9, mounted on arms 10, 10 carried by the motor casing or support 6. The pivot pins 9, 9 are preferably located in alinement with each other. beyond one end of the motor casing 6, and abovetheaxles, as shown in. Fig. 3.. The opposite unpivoted end of the casing 6is flexibly supported on theaxles in any suitable manner, preferablyby means of a pair of vertically disposed springs seated in stirrups-ll, 11, extending from the sides of the motor casing 6 and seated on the brackets 7,7, shown. It will be seen that this pivoted constructioi'r allows one axle to swing in relation to theother axle-so the wheels "may remain in contact with the rails during the operation of the locomotive over uneven track. In the pre ferred, construction shown, both axles 3 3', are pivoted to the motor housing, but it is manifest that substantially the sameflexibility of the truck will result ifonly one of the axles is mounted on a pivoted bracket, and the other mounted rigidly with respect to the motor casing. f

Suitable spacing sleeves 8*, 18, are in sorted on the axles 3, 3, betweenthe wheels 3 3, and bracket ournals 8, 8. The width of these spacing sleeves may be changed to accommodate variations in track widths, as desired.

The locomotive is driven by a single elec-t" tricmotor 12, in the casing 6, before men tioned, and provided with an armature 13, an armature shaft 14, and bearings 15, for said shaft. A brake drum 16, is preferably mounted on the armature shaft near one end,"as shown. I

'The motor armature 13, is interposed be J tween the axles 3, and parallel therewith so that the greatest width'of the motor,

represented by the pole-pieces 17, 17 islocated between, and extending below the axles, as'shown. Th s arrangement allows themoto'r to'be set as low betweenthe axles ,as is practicable, as'it will be seen thatj the and split-on: an angular plane so asto'be bottom wall of'the motor'casing 6 establishes the clearance of the locomotive over the center of the roadbed. Themotor' lQ may beof any approved type. Means of access to themotor comprises a removable cover plate18 onthe casing 65, preferably arranged "to carry oneofthe pole-pieces 1 7,

easily removed from the armature.

Thepower transmission comprises thearmature shaft 14, pinion 19 on said armature shaft,two intermediate gears 20, 20, mount ed on; pins 21, 21 carried by the motor cas ing on opposite sides of said armature pinion, and gearywheels 22, '22, preferably mou'nted on'th'e axles 3,13. The arrangement I is such that the intermediate gears 20, 20,

rotate'in substantially "the same vertical plane {as "the axis of 'the' pivots 9, 91 This arrangement of gearing allows each axleto tially-"in the same; vertical plane asthe axis of apiv0t 9. "In-other words,fthe power transmissionmechani'sm carriedon the pivoted brackets has a c'ontinuousdriving con-- nection with the mechanism mounted on the motor casing'in the manner shown; I do not, however, wish to be understood as limiting myself to theparticularform" of driv' ing mechanism which I "have shown "herein, excepting as specifically limited in the appended claims. 1

From the foregoing descriptiom'it'will'be clear that I have provided a locomotive" of the single-motor, flexibly mounted axle type, in which a'full spring suspension is provided for i the main frame: of the locomotive.- lVith such a construction, the wheel base may be made of sufficient length to allow storage batteries of considerable bulk and weight to be carried in suitable compartments 23, 24, on the ends of the main frame,'withoutcausing an excessive amount of teetering motion, which is objectionable in locomotives of this type. This construction therefore, provides a means of reducing"theoverallheight of the locomotive,

including the storage batteries, to a minimum. V

Having described my invention what I claim as new and desire to cover by'Letters Patent, is:

1. A locomotive having-a mainframe, two axles laterally spaced apart, a motor, a support for said motor independent of said main frame,said support including a horizontally disposed pivot affording movement of OneOfsaid axles out" of parallelism with the other axleyand a gear carried by said supportand affording an operative connection withsai dpivoted axle at a point substantially in line with said'pivot.

2 A- locomotive having a mainframe, two axles laterally spaced apart, a motor having its greatest widthbetween and extending below said axles, a'support for said motor journaled on said axles and affording movement of said axles in a; vertical plane independentpf each" other, spring suspension means" for said main frame independent of said motor support, and two gears mounted on said motor support, eacharranged'inten mediate'said-"motor andon'e 'of said axles,

and forming between. p

3. A locomot'ivefliaving' a main frame,

an operative connection theretwo axles laterally spaced apart, 'a motor havingfits greatest width 'between'and extending-below said axles, a'support for said motor independent of said-mainframe, said support including a horizontally disposed I pivot falfordi'ng' movement of one of said axlesout-ofparallelism with the other axle,

and' adriving connection between said motor andsaidpivoted axle. i l

4'. In a locomotive, the "combination of a main frame, two j axles laterally" spaced apart, a motoruhav'ing its greatest width be:

tween and extendingbelow said axles, a support for said motor, spring suspension means forsaid main frame independent of saidimotor support, a gear carried by said support intermediate said motor and one of said axles, forming an operative connection therewith, and means] connecting the last named axle to said support and affording movement-of said axle substantially'in a vertical plane'whereby said gear is maintained indriving connection with said axle in all its various positions.

5.1A locomotive having a main frame, two axles"laterallytspa'ced'apart, a motor having its greatest width between and extending below said axles, a support for said motor independent of said main frame, said support including a horizontally disposed pivot affording movement of one of said axles out of parallelism with the other axle, and a gear carried by said support and affording an operative connection with said pivoted axle at a point substantially in line with said pivot.

6. A locomotive having a main frame, two axles laterally spaced apart, a motor having its greatest width between and extending below said axles, a support for said motor independent of said main frame, said support including a horizontally disposed pivot affording movement of one of said axles out of parallelism with the other axle, and a train of gears mounted on saidmotor sup port, having an operative connection with said pivoted axle at a point substantially in line with said pivot.

7. A locomotive having a main frame, two

axles laterally spaced apart, a motor, a support for said motor including a horizontally disposed pivot near one end thereof affording movement of one of said axles out of parallelism with the other axle; means flexibly supporting the unpivoted ends of said motor support on said pivoted axle,-an 0perative connection between said motor and said pivoted axle, and spring suspension means for said main frame on said axles.

8. A locomotive having a main frame, two axles laterally spaced apart, a motor, a support for said motor including horizontally disposed pivots near one end thereof affording movement of said axles out of parallelism with each other; means flexibly support ing the unpivoted end of said motor support on said pivoted axles, an operative connection between said motor and said pivoted axles, and spring suspension means for said main frame on said axles.

Signed at Chicago, Illinois, this 30th day of April, A. D. 1920.

WILLIAM W. SLOANE. 

